The applicable Standard, VI(C), does not require a member to disclose
the percentage of their business that comes from referrals.
Standard VI(C) states, "Members shall disclose to clients and prospects
any consideration or benefit received by the member or delivered to others for
the recommendation of any services to the client or prospect." Appropriate
disclosure means telling the client or prospect, before agreeing to perform
services, of any benefit given or received for recommending the member’s
services.